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29 terms

Science True/False Questions

STUDY
PLAY
True
Displacement includes both distance and direction.
False
Motion occurs when there is a change in speed.
False
If you were trying to get out of the way of a storm, you would need to know the speed at which it was moving.
False
The total distance traveled divided by the constant speed is the average speed.
True
The relationship s= d/t can be used to calculate speed, distance, or time.
True
Acceleration occurs when speed changes.
False
If you roll a ball up a hill, it undergoes positive acceleration.
False
When you push on a sled and it begins to go downhill, you cause negative acceleration.
True
Acceleration is calculated by dividing change in velocity by total time.
False
When the forces acting on an object are unbalanced, the net force is zero.
False
An object in motion at a constant velocity will change its motion only if a balanced force acts on it.
True
In a car crash, inertia could cause you to crash into the windshield
True
Unbalanced forces acting on an object cause the object to accelerate.
True
Gravity causes all falling objects to accelerate at a rate of 9.8 m/s/s.
True
Acceleration is defined as the rate of change of velocity.
True
Terminal velocity is the highest velocity that will be reached by a falling object.
False
The momentum of a 5,000-kg truck that is standing still is greater than the momentum of a 3,000-kg truck that is also at rest.
True
When an object falls, it is reacting to the force of gravity.
False
Madison is on a merry-go-round that is moving at a constant speed. Her velocity is also constant.
True
Momentum is a property of an object and can be transferred from that object to another object.
True
Objects in Earth's orbit appear to be weightless because they are in free fall.
True
Friction is a force that resists motion between two surfaces that are touching each other.
True
Fractional distillation is the separation of petroleum into its individual carbon compounds.
True
A peptide containing a large number of amino acids is called a protein.
False
Lipids control the production of proteins.
True
When a peptide contains a large number of amino acids, the material is called a protein.
True
Most of the important biological compounds in your body are polymers.
False
Compounds containing carbon are inorganic compounds.
False
Cholesterol is made of monomers of the sugar glucose.